Stop-valve.



No. 673,294. Patented Apr. 30, I90]. w. A. a. SCHONHEYDER.

STOP VALVE.

(Applicatioflflled Feb. 11, 1901.

(No Model.)

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UNITED STATES PATENT OFFICE.

WILLIAM A. c. soHoNHEYnER, or CLAPHAM PARK, ENGLAND.-

STO P-VALVE.

SPECIFICATION forming part of Letters Patent No. 673,294, dated April30, 1901.

Original application filed October 25, 1900, Serial No. 34,375. Dividedand this application filed February 1], 1901. Serial No.

I 46,841. (No model.)

To all whom, it inc/y concern:

Be it known that I, WILLIAM ANTON GOTT- LIEB SoHoNHEvDER, a citizen ofDen mark, residing at 4 Rosebery road, Claphain Park, in the countyofSurrey, England, have in vented a certain new and useful Improvement inStop-Valves, (for which I have applied for a patent in Great Britain,dated April 28, 1900, No. 7,914,) of which the following is aspecification.

My inventi0n,which Originally formed part of my application for patentbearing the serial number 34,375, filed October 25, 1900, of whichapplication the present is filed as a division, relates to stop-valvesso constructed that when they are worked, in the act of opening orclosing the passages which they govern,

"their surfaces are partially rotated on their seatings, producing agrinding and polishing action and uniform wear, making the partsaccurately fit and preventing leakage.

The accompanying drawing is a vertical section of a stop-valve accordingto my invention.

The valve g is coned to bear against a seating. It is fitted freely on asquared part h of the valve-rod 10,3 ust above a collar underwhich thereis certain free space i. The valve is preferably urged upward by aspring j. The screwed rod in when turned by a handle l, so as to openthe valve, first turns the valve 9 partly around until the collar at theend of the rod passes down to the bottom of the space i, and

then it moves the valve down. Also when the rod 70 is turned in theopposite direction, so as to close the valve, it first partly turns thevalve with it, and then the collar at its end rises to the top of thespace i) and holds the valve to its seat.

Having thus described the nature of this invention and the best means Iknow of carrying the same into practical effect, I claimw. A. e.soHoNnEYDER.

Witnesses:

GERALD L. SMITH, EDWARD GARDNER.

